Divergence Angle
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Experimental and Numerical Study on the Dispersion Patterns and Penetration Properties of MEFP with Seven Arc-Cone Liners
Abstract A new MEFP warhead with seven arc-cone liners which can form 7, 13 or 19 penetrators at different standoffs is designed. Dispersion patterns and penetration properties of MEFP are performed on five #45 steel targets of dimension 160cm x 160cm x 1.5cm at various standoffs (45cm, 60cm, 80cm, 120cm, 170cm). It reaches the conclusion that every surround
Lat. Am. j. solids struct.. Publicado em: 2017-06
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2. Numerical and Experimental Study on the Formation and Dispersion Patterns of Multiple Explosively Formed Penetrators
Abstract Three-dimensional numerical simulations and experiments were performed to examine the formation and spatial dispersion patterns of integral multiple explosively formed penetrators (MEFP) warhead with seven hemispherical liners. Numerical results had successfully described the formation process and distribution pattern of MEFP. A group of penetrators
Lat. Am. j. solids struct.. Publicado em: 2017-03
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3. Numerical Analysis of Swirl Effects on Conical Diffuser Flows
ABSTRACT: The present paper focuses on the effect of swirl on important parameters of conical diffusers flows such as static pressure evolution, recirculation zones and wall shear stress. Governing equations are solved using a software based on the finite volume method. Moreover, turbulence effects are taken into account employing the k-ε RNG model with an
J. Aerosp. Technol. Manag.. Publicado em: 2017-03
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4. Evaluating the Effectiveness of the Lateral Intercrural Suture to Decrease the Interdomal Distance to Improve the Definition of the Nasal Tip in Primary Rhinoplasty
Introduction Several surgical techniques emphasizing sutures on the lower lateral cartilage have been studied by surgeons as instruments to improve nasal tip remodeling. It is already known that the domal divergence angle and its definition angle can be modified by lateral intercrural suture (LIS). Techniques for measuring these structures are not yet stan
Int. Arch. Otorhinolaryngol.. Publicado em: 2014-04
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5. Study of the parameters affecting ion beam emerging from cold conical cathode ion source
The aim of this work is study of the parameters affecting ion beam emerging from cold conical cathode ion source. The input discharge and output ion beam characteristics have been measured at different pressures using nitrogen and argon gases. The optimum distance between the ion exit aperture of the cathode and the movable copper ion collector plate has bee
Brazilian Journal of Physics. Publicado em: 2010-09
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6. Cephalometric assessment of vertical control in the treatment of class II malocclusion with a combined maxillary splint
Vertical control is one of the primary objectives sought by orthodontists when treating malocclusions in hyperdivergent individuals. This investigation aimed at assessing vertical control, by cephalometric measurements, during the treatment of Angle Class II Division 1 malocclusion. Thirty cases, selected from the files of the São Leopoldo Mandic Dental Res
Brazilian Oral Research. Publicado em: 2010-03
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7. Avaliação morfológica de bifurcações radiculares e curetas periodontais
O presente estudo teve por objetivo avaliar as características anatômicas das bifurcações radiculares, e compará-las às dimensões das pontas ativas das curetas de Gracey e Pádua-Lima. Foram utilizados 198 dentes, distribuídos entre primeiros e segundos molares superiores e inferiores, provenientes do Banco de Dentes da Universidade de Taubaté. Depo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/07/2008
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8. Padrão de venação e epiderme foliar de espécies de lauraceae juss do Distrito Federal, Brasil
Eighteen Lauraceae species, occurrent in Distrito Federal Brazil, had their leaf blades examined with the aim to assess the general characters usually considered in studies about epidermis and leaf architecture beyond proposing the use of additional characters. For the venation patterns analysis, some characters were proposed as well as the distancing betwee
Publicado em: 2008
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9. AVALIAÇÃO DO TORQUE DOS BRAQUETES DOS INCISIVOS SUPERIORES E INFERIORES DA TERAPIA BIOPROGRESSIVA DE RICKETTS. / Assessment of maxillary and mandibular incisor bracket torque in Ricketts bioprogressive therapy
Technological advance has provided improvement in materials, allowing professionals to obtain better precision in the results of their treatments. In Orthodontics, the possibility of making use of pre-adjusted brackets represents one of these advances. The aim of this study was to assess the precision of the torque on pre-adjusted maxillary and mandibular in
Publicado em: 2007
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10. Comparação cefalometrica entre as grandezas de avaliação antero-posterior das bases apicais / Cephalometric comparison between the antero-posterior evaluation variables of apical base widths
The object of this research was to assess the behavior of the ANB angle, the Wits assessment, of AF-BF distance, the USP Projection and the AP-BP distance in leucodermic Brazilian individuals with clinically normal occlusions. An assessment was made of 79 lateral teleradiographs of the head, there being 40 of men and 39 of women, divided into three groups ac
Publicado em: 2006
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11. Resolução do problema de fluxo de carga para redes de distribuição utilizando o metodo desacoplado rapido com rotação automatica de eixos / Fast decoupled load flow method with automatic axes rotation for distribution systems
The fast decoupled loadflow (FDLF) [2] is a variant of the traditional Newton method [1] for solving the loadflow problem (find the operational state of electrical power networks). It is well-known that FDLF presents unsatisfactory performance when applied to distribution systems. Their unfavourable r/x branch ratios may lead to divergence or slow convergenc
Publicado em: 2006